CN202134034U - MICRO SD card - Google Patents
MICRO SD card Download PDFInfo
- Publication number
- CN202134034U CN202134034U CN201120242976U CN201120242976U CN202134034U CN 202134034 U CN202134034 U CN 202134034U CN 201120242976 U CN201120242976 U CN 201120242976U CN 201120242976 U CN201120242976 U CN 201120242976U CN 202134034 U CN202134034 U CN 202134034U
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- pin
- card
- electrically connected
- micro
- controller
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Abstract
The utility model relates to a MICRO SD card, comprising a card body, a metal contact sheet set being located on the card body and being in accord with SD interface protocol, an SD controller packaged inside the card body, a storage module and a passive component, wherein the metal contact sheet set and the storage module are respectively and electrically connected with the SD controller, the passive component is respectively and electrically connected with the storage module and the SD controller, on the card body there is also provided an array base pin set being in accord with EMMC protocol physics standard, and the array base pin set is electrically connected with the SD controller. The MICRO SD card enables the array base pin set to be arranged on the card body, to be in accord with the EMMC protocol physics standard, and to be electrically connected with the SD controller, employs only the EMMC protocol physics standard, and is suitable to the traditional mobile terminal with an EMMC chip embedded therein for storage, and the data communication protocol of the MICRO SD card does not employ the EMMC protocol, such that it is no need to pay the license fee of the EMMC protocol thereby reducing the cost of the MICRO SD card.
Description
[technical field]
The utility model relates to electronic information technical field, particularly a kind of MICRO SD card.
[background technology]
Traditional portable terminal is as adopting EMMC (Embedded Multi Media Card, built-in multimedia storage card) as memory device in mobile phone, MP3 player, the learning machine etc.Wherein, EMMC is MMCA (Multi Media Card Association; Multimedia storage card association) ordered embedded memory standards specification, it is integrated controller in encapsulation, standard interface can be provided and manage flash memory; Make mobile terminal device manufacturer need not handle the compatibility and the problem of management of other complicated NAND Flash chips, shortened new product release cycle and R&D costs.
Yet because EMMC has adopted standard agreement; Its price is relatively costly; Thereby make the cost of portable terminals such as MP3 player, learning machine increase, and portable terminals such as MP3 player, learning machine have only used the fraction function of EMMC, caused the wasting of resources of EMMC chip.
[utility model content]
Based on this, be necessary to provide a kind of MICRO SD card of compatible EMMC agreement, to reduce the cost of portable terminal.
A kind of MICRO SD card; Comprise the card body, be positioned on the said card body and the SD controller, memory module and the passive device that meet the metal contact group of SD interface protocol and be packaged in said card body; Said metal contact group, memory module are electrically connected with said SD controller respectively; Said passive device is electrically connected with said memory module and SD controller respectively; On said card body, also be provided with the array pin group that meets EMMC agreement physical specification, said array pin group is electrically connected with said SD controller.
Preferably, said array pin group is a ball array pin group.
Preferably, said array pin group comprises that at least the data line pin, the card that are electrically connected with said SD controller respectively detect pin, order wire pin, power lead pin, clock line pin and ground wire pin.
Preferably, said metal contact group comprises at least:
The data line contact that is electrically connected with said data line pin;
Detect the card detection contact that pin is electrically connected with said card;
The order wire contact that is electrically connected with said order wire pin;
The power lead contact that is electrically connected with said power lead pin;
The clock line contact that is electrically connected with said clock line pin; And
The ground wire contact that is electrically connected with said ground wire pin.
Preferably, said array pin group comprises 153 pins.
Preferably, said array pin group comprises 169 pins.
Preferably, said memory module is the Nand Flash that is electrically connected with said SD controller.
Above-mentioned MICRO SD card; On the card body, establish the array pin group that meets EMMC agreement physical specification, this array pin group is electrically connected with the SD controller, has only adopted the physical specification of EMMC agreement; Be applicable to the chip embedded mobile terminals stored of traditional EMMC; Its data communication protocol does not adopt the EMMC agreement, need not pay the license fee of EMMC agreement, has reduced cost.
[description of drawings]
Fig. 1 is the circuit structure module diagram of a kind of MICRO SD card among the embodiment;
Fig. 2 is the external structure synoptic diagram of a kind of MICRO SD card among the embodiment.
[embodiment]
Below in conjunction with concrete embodiment and accompanying drawing the external structure of MICRO SD card and the circuit structure of inside are carried out detailed description.
As depicted in figs. 1 and 2; In one embodiment; A kind of MICRO SD (Micro Secure Digital Memory Card, miniature safe digital card) card 100 comprises card body 110, SD controller 120, memory module 130, passive device 140, metal contact group 150 and array pin group 160.
SD controller 120, memory module 130 and passive device 140 are packaged in the card body 110, and memory module 130 is electrically connected with SD controller 120, and passive device 140 is electrically connected with memory module 130 and SD controller 120 respectively.
Memory module 130 is used to deposit program and data, can change program and the data of depositing according to the data needs, as depositing played data, personally identifiable information etc.Memory module 130 can be the Nash Flash that is electrically connected with SD controller 120.
Passive device 140 can be resistance, electric capacity, etc. device.The effect of electric capacity is that power supply is carried out filtering, and the effect of resistance is the stability that guarantees CLK (clock), strengthens equipment compatibility.
The data line pin is electrically connected with the data line contact, and card detects pin and is electrically connected with card detection contact, and the order wire pin is electrically connected with the order wire contact; The power lead pin is electrically connected with the power lead contact; The clock line pin is electrically connected with the clock line contact, and the ground wire pin is electrically connected with the ground wire contact.
Above-mentioned MICRO SD card; On the card body, establish the array pin group that meets EMMC agreement physical specification, this array pin group is electrically connected with the SD controller, has only adopted the physical specification of EMMC agreement; Be applicable to the chip embedded mobile terminals stored of traditional EMMC; Its data communication protocol does not adopt the EMMC agreement, need not pay the license fee of EMMC agreement, has reduced cost.
In addition, adopt the array pin group that meets EMMC agreement physical specification, be applicable to the portable terminals such as MP3 player or learning machine of the chip embedded storage of Traditional use EMMC, do not needed the layout-design of hardware circuit is made an amendment, reduced design cost.
The above embodiment has only expressed several kinds of embodiments of the utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection domain of the utility model.Therefore, the protection domain of the utility model patent should be as the criterion with accompanying claims.
Claims (7)
1. MICRO SD card; Comprise the card body, be positioned on the said card body and the SD controller, memory module and the passive device that meet the metal contact group of SD interface protocol and be packaged in said card body; Said metal contact group, memory module are electrically connected with said SD controller respectively; Said passive device is electrically connected with said memory module and SD controller respectively; It is characterized in that on said card body, also be provided with the array pin group that meets EMMC agreement physical specification, said array pin group is electrically connected with said SD controller.
2. MICRO SD card according to claim 1 is characterized in that, said array pin group is a ball array pin group.
3. MICRO SD card according to claim 1 and 2; It is characterized in that said array pin group comprises that at least the data line pin, the card that are electrically connected with said SD controller respectively detect pin, order wire pin, power lead pin, clock line pin and ground wire pin.
4. MICRO SD card according to claim 3 is characterized in that, said metal contact group comprises at least:
The data line contact that is electrically connected with said data line pin;
Detect the card detection contact that pin is electrically connected with said card;
The order wire contact that is electrically connected with said order wire pin;
The power lead contact that is electrically connected with said power lead pin;
The clock line contact that is electrically connected with said clock line pin; And
The ground wire contact that is electrically connected with said ground wire pin.
5. MICRO SD card according to claim 1 is characterized in that, said array pin group comprises 153 pins.
6. MICRO SD card according to claim 1 is characterized in that, said array pin group comprises 169 pins.
7. MICRO SD card according to claim 1 is characterized in that, said memory module is the Nand Flash that is electrically connected with said SD controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120242976U CN202134034U (en) | 2011-07-11 | 2011-07-11 | MICRO SD card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120242976U CN202134034U (en) | 2011-07-11 | 2011-07-11 | MICRO SD card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202134034U true CN202134034U (en) | 2012-02-01 |
Family
ID=45522797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120242976U Expired - Fee Related CN202134034U (en) | 2011-07-11 | 2011-07-11 | MICRO SD card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202134034U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578522A (en) * | 2012-08-01 | 2014-02-12 | 慧荣科技股份有限公司 | Storage medium, data transmission system with storage medium and control method thereof |
| US11568196B2 (en) | 2018-02-01 | 2023-01-31 | Huawei Technologies Co., Ltd. | Memory card and terminal |
-
2011
- 2011-07-11 CN CN201120242976U patent/CN202134034U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578522A (en) * | 2012-08-01 | 2014-02-12 | 慧荣科技股份有限公司 | Storage medium, data transmission system with storage medium and control method thereof |
| US9251454B2 (en) | 2012-08-01 | 2016-02-02 | Silicon Motion, Inc. | Storage medium, transmittal system and control method thereof |
| CN103578522B (en) * | 2012-08-01 | 2016-12-07 | 慧荣科技股份有限公司 | Storage medium, data transmission system with storage medium and control method thereof |
| US11568196B2 (en) | 2018-02-01 | 2023-01-31 | Huawei Technologies Co., Ltd. | Memory card and terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20160711 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |